Update docker-image.yml

Author: RICHARD-Quentin

.github/workflows/docker-image.yml

@@ -3,8 +3,8 @@ name: Create and publish a Docker image
 
 # Configures this workflow to run every time a change is pushed to the branch called `release`.
 on:
-  push:
-    branches: ['release']
+  release:
+    types: [published]
 
 env:
   REGISTRY: ghcr.io